Pencil



Dec. 26, 1922. 1,440,045.

. A. F. YOUNG.

PENCIL,

FILED OCT. 1 1921.

fig z 5 W A TTORNE Y Patented Dec. 2%, 1322..

ALBERT F. YOUNG, OF NEW YORK, N. Y.

PENCIL.

Application filed October 1, 1921.

To all whom; it may concern.

Be it known that I, ALBERT F. YOUNG, a citizen of the United States, residing at N o. 4171 Stratford Road, in the city of New York, county of Kings, and. State of New York, have invented certain new and useful Improvements in Pencils, of which the following is a specification, reference being had to the accompanying drawings.

It is the purpose of this invention, generally stated, to provide a pencil in which the lead may bequickly and easily supplied at the writing end of the pencil, thus avoiding all necessity for sharpening the same; in which the length of the pencil will always remain the same; in which leads of differing shape and color may be interchangeably used-and which has an attractive appearance, and is convenient in operation. 7

In the drawingsFigure 1, illustrates a longitudinal sectional view of a pencil embodying one form of the invention.

Figure 2, illustrates an elevation of the forward end of the pencil, the tip being removed.

Figure 3, illustrates an elevation of the threaded lead holderand lead.

Figure 4, illustrates a crosssectional view of that which is shown in Figure 3.

Figure 5, illustrates a cross sectional View on the line 5, 5, of Figure 1.

Figure 6, illustrates an elevation looking at the forward end of the pencil.

Figures 7 and 8, illustrate, cross sectional views of leads of differing shape.

Figure 9, illustrates a longitudinal sectional view of the tip of the pencil.

In the drawings 1, illustrates the body of the pencil which is tubular in form and is threaded interiorly throughout its length as shown at 2. At the rear end the threads are cut away for a space, leavingan enlarged recess or chamber 3. i is a cap for the rear end of the pencil which may be held in place by threads 5, or in any other preferred manner. At the forward end, the diameter of the pencil body is reduced, thus producing a forwardly extending part 6 (see Figure 2) in which are made two or more longitudinal grooves 7, 7, which connect with a similar circumferential groove 8 in the part 6; the tip 9 is preferably made as shown in Figure 9, that is to say, tapering in shape and perforated by "a .hole 10, which is in shape and diameter substantially that of the lead used in the pencil. The tip Serial no. 504,737.

has a recess 11 in its rear end adapted to fit over the projecting part 6 of the pencil body and it is provided with inwardly extending pins 12, 12 which are adapted to slide through the grooves 7, 7, and enter and move freely through the circumferential groove 8, when the tip and pencil body are rotated relative to each other. 13 is the lead holder. It is preferably a hollow metallic plug-like device, threaded exteriorly as at 14 to match the thread in the body part and is provided with a lead gripping clamp 15. This clamp is rigidly attached to the holder 13 and may be made of such shapeas will best aid in holding the lead. In F igure 3 it is shown as a mere flat spring like part having a plate like part at its end arranged at right angles to the spring like part and through which the lead passes.

The operation of the parts is as follows: The leads which may be of such shape in cross section and of such density and color as preferred, are engaged with the lead holder either permanently, or preferably by simply pressing them into the hollow interior 0f the holder, having first passed the end of the lead through the clamp 15, which being of spring metal and offset somewhat will exert a gripping and holding action on the lead when it is straightened into alignment with the threaded bore of the pencil body. The cap 4 being removed the lead is now dropped through the body part until the holder engageswith the threads in the interior of the body part. The cap 4 may then be replaced. The tip 9 is now applied upon the forward end of the pencil, care being taken that the lead is not broken during its passage through the tip. If the lead be angular in cross section, then of course the hole through the tip will be of the same form, but if round then in order that the lead may be compelled to rotate on its longitudinal axis when the tip is rotated, I provide the tip with a spring 16, which projects into the lead passage and binds upon the lead, thus assuring its rotation when the tip is itself rotated. It will be noted that since the pins 12-12 on the tip pass throu h the longitudinal grooves 7 and enter the circumferential groove 8, that the tip may be freely rotated relative to the body part of the pencil without separation therefrom, the connection being in the nature of a bayonet slot joint; It will also be noted that the enlarged space 3 at the rear end of the body part and a similar enlarged recess or space marked 17 at the forward end are provided so that. should the holder 13 at any time these enlarged and threadless spaces, that further rotation will not e'fiect any movethe other and being rotated relative to each other the threads on the holder engaging those on the body part will cause'the projectioncof additionallead if rotated in one the retraction of the lead for if in the .other direction.

direction or 1ts protection,

be brought by the rotation of the parts relative to each-other into either of by thumb and finger It will be obviousto those who are fa-' above described by me and yet the essentials of the invention be employed. 1 therefore do not limit myself to such details. I The various parts of the pencil will of course, perience of the art and the desire of the maker may suggest.

I claim i A pencil having a continuously bored and threaded body part and enlargedthreadless spaces at each end of the bore, lead holder a tip attached to the body part and adapted to be rotated relative to it and means on the tip which adjustably engage the lead and compel the lead and, through it, the lead holder to revolve with the tip.

ALBERT F. YOUNG.

be made of such materials as the exa threaded 

